Rice Lake Mechanical Chair Scale (RL-MCS) - Manual (Page 12)

8 Mechanical Chair Scale Installation and Operation Instructions
3.0 Zero Adjustment
To ensure accurate weighments, a zero adjustment should be done to the scale upon arrival and setup. To perform
a zero adjustment, perform the following steps.
1. Ensure the scale is sitting on a level surface.
2. Check the eye loop area of the scale to ensure that the scale pointer is equally balanced between the eye
loop area.
Figure 3-1. Eye Loop Area and Zero Adjusting Screw Location (Lb/Kg model shown)
3. If the scale is not balancing properly, then the small zero balance weight must be adjusted. Turn the zero
adjusting screw (shown in Figure 3-1) using a flat head screwdriver. By adjusting the screw, the zero
balance weight will move accordingly.
4. The scale is now ready to weigh patients.
5. Have the patient sit down on the molded seat. The patient should be completely seated in the chair,
not leaning forward, and having feet firmly positioned on the footrest assembly.
Eye Loop
Area
Z e r o
A d j u s t i n g
Screw
Scale pointer